How Data-Driven Marketing Turns Customer Insights Into Growth

In this episode of The Sheer Growth Podcast, James Sheerin sits down with Jim Harenchar, CEO of Response Marketing Group, to explore how data, analytics, and customer insight can turn marketing into measurable growth.Response Marketing Group is a data-driven marketing and analytics firm with nearly 40 years of experience helping brands improve acquisition, retention, cross-selling, attribution, and performance accountability.Jim shares how RMG evolved from the early days of direct mail and telemarketing into a modern analytics-led business helping clients understand not just who their customers are, but how to engage them more intelligently.We cover:• How Response Marketing Group has lasted nearly 40 years• Why data is still the foundation of effective marketing• How segmentation and predictive modelling improve performance• Why attribution matters more than ever• How brands can use data even without a large CRM• Why client relationships and retention drive long-term agency growth• How AI is changing analytics, modelling, and campaign execution• The future of RMG’s growth model in 2026If you’re an agency owner, marketer, or founder looking to make marketing more accountable, this episode is packed with valuable insight.00:00 – Introduction00:42 – Jim’s background and RMG’s 40-year journey02:15 – How RMG started with direct mail and telemarketing03:45 – Using data to identify and target better customers05:20 – How marketing has evolved across channels06:50 – Working with clients at different sophistication levels08:30 – Why ROI matters at every budget level10:00 – What RMG does differently12:15 – Making campaigns more targeted and accountable14:00 – How RMG generates growth and referrals16:00 – The challenge of awareness as a boutique firm18:15 – Building relationships beyond transactional marketing20:30 – How AI is changing data and analytics23:00 – From seven-day modelling to seven-minute modelling25:00 – The risks and opportunities of AI creative27:00 – RMG’s growth vision for 202629:30 – SaaS model vs managed services31:30 – Where to find Jim and Response Marketing Group⸻🎙️ About Jim HarencharJim Harenchar is the CEO of Response Marketing Group, a data-driven marketing and analytics firm focused on helping brands turn customer insight into measurable growth.RMG helps clients with:• Customer segmentation• Predictive modelling• Attribution• Performance accountability• Campaign optimisation• Data-led growth strategyWebsite:https://www.rmg-usa.comYouTube:Search “Response Marketing Group” or “RMG USA”⸻⭐ About The Sheer Growth PodcastThe Sheer Growth Podcast features smart conversations with founders, marketers, and agency leaders on growth, AI, and the future of business.Hosted by James Sheerin.⸻🚀 Powered by Sheer AIAt Sheer AI, we help agencies grow with AI-powered client acquisition.We help marketing and advertising agencies:• Build predictable lead generation systems• Improve campaign ROI• Replace unnecessary tools with smarter workflows• Scale without bloated overheadWebsite:https://www.sheer-ai.com